[hpsdr] MUNIN low output

[Byron Engler]

Hi,
I am having a similar problem. I did post it on the list not too long ago.
Still haven't got it right. Supply voltage is is 12.8V so only expecting
around 70-80W output. 160-12m I have adjusted the gain per band to get 70W
out (my gain settings look very similar to Kjell's) then on 10m the most I
can get is about 50W and 6m around 40W. When trying 10 and 6m C25,26,27 get
hot and the first test I ever did on 6m C27 burnt up.
Power measurements were made with an oscilloscope (100Mhz) and a dummy load
straight on the output of the PA.

73
Byron
ZL3DXT


On Fri, Oct 4, 2013 at 11:09 AM, dlwaddel at netzero.net
<dlwaddel at netzero.net>wrote:

> ***** High Performance Software Defined Radio Discussion List *****
>
> I know I've seen several comments about low output from MUNIN, but can't
> find them. So...
>
> Does anyone have some pointers of what to look for? My MUNIN has full 100
> watts on bands below 15 meters. On 15 the output drops to 85 watts, on 10
> meters it drops to 25 watts, and on 6 meters the output is a measly 15
> watts.
>
> I am driving it with Hermes and use a 13.8 volt power supply. I have the
> MUNIN piped into ALEX and the output into a dummy load. MUNIN was built
> following the guidelines on K9IVB's web site, including construction of all
> inductors and transformers.
>
> Thanks,
> Don
> K3DLW
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